Wood flooring.



` To all wwm kmay concern:

JOHN Jp'. CQBASBROUCK, OF NEW YORK, N. Y.

woon rLoomNG.

crassa Be it known that I, JOHN J.' C. Has- BaoUci.,'a citizen ofthe United States, and a resident of the boron of Manhattan, in the count of New Yoi, city and Stateof New Yor haveinvented certain new and useful Improvementsin Wood Flooring, of,

' which the following is a specification.

- ple, inexpensive and durable constructiom My invention relates to wood flooring and particularly to wood-block or parquet floor- .ing, and'its objects` are among others to provide for a flooring of this characterr of simthe arts of which may be easily made and readily fitted together in a manner that will cause them to become practically integral and capable of resisting-a great amount of wearand strain. n Y n Another object is to rovidefor a construction of flooring of t 's character which will resist the action of heat and moisture to afgreat extent and also the action of variousk T v preparations used for cleansing an'l dressing the upper surface of the floor.

The invention is illustrated in the accom-v panying drawingsjreferred to herein,

which Figure 1 is a perspective view of a piece of wood-block flooring embodying my irnprovements. Fig. 2 is a vertical section of the saine. y

The blocks or strips are preferably of l greater length .than width, and have plain Y havin a convex u er surface C' a straivht.

upper portions A with vertical sides. In the usual construction the blocks or strips are so arran ed that their ends and sides abut, and it is to the abutting portions and adjacenty parts that the modifications of structire embodying my improvements are a lie phach block has at its ends a t'ongue C,

lower sui-face Cz, and a grooveor undercut ortion D terminating at tliebottom of the lock. It will be seen that the tongue C extends a considerable distance beyond .vertical surface o f the block liletlic lower specifi-sauer. owners ramt Appiicmon inea auch 2, isos. .'seriai Na. 418,648. A, f

of the block extends theV oov'e F. When the end of a block isjplace against the side of another block, the tongue C on the end j i i STATES ,PATENT onirica. j

Patented oct; 1i. 1910.

portion of the groove in the end. rom'y the out-er edge of this shoulder to the bottom i will enter the groove B and extend over the shoulder E but the lower edges of the abut tin portions will not meet'and a cavity y wil be formed by the grooves F and D, extending a short distance into each block, and open at the bottom. It will also be seen that the curvature of the upper ,surface of l l the `tongue C is on a slightlylesser radius than that of the groove B, so that when the tongue is within the groove the said u per surface of the tongue and the upper wa l of the groove will not meet but will leave a narrow space between them which is'wider i p ,y

T5 its upper portion and is completev y closed at at the lower portion of the ton e than at a point near the juncture of the ve and upper vertical surface of the b ack.. The shoulder E supports the tongueC against sett-ling and insures the proper vertical placing` of the abutting parts.

loors composed of blocks of this cliaracf y. i Ateiare preferably laid on as halt which is in ali =iiid state, when the bloc :s are assembled. In t ie drawing the asphalt is represented at X and as will be seen, it enters the ca'vity beV tween the blocks and forms a key securely uniting them and preventing vertical displacement. At tbe sanie time there is left an air space between the lower portion of the tongue and the wall of the groove B, which v will allow the :riore liquid portions of the*v asphalt to creep up over thel surface ofthe tongue andthe wall of the groove to saturate the wood and thus render it water roof, preventing warping and swelling an consequent displacement of the blocksk What l claim is:

iin a maaier-k fiom-0r thanks uw?" f combination of blocks provided with plane upper surfaces and vertical upper p ortions on their sides adapted to be laced in contact, a. horizontal tongue on t ie side of one of the blocks having a rounded upper sur- .f

face and :i straightunder surface, a groove iii the ide of another block adapted to re ceive the tongue, und sup ort it by this straight under surface, an curved `on approxiniately the suine curve as the roux-.ded upper .surface of the tongue but-varying there' roiu su :isY to leave a sligigh't space or crevice. .between the outer surface of the tongue and ies the surface of the groove extending downwardly from the uppervertienl surfaces, u groove beneath the sand tongue ,extending e from the tongue. to the bottom of the block und u projertine' portion extendin;r beyond: the iongfut-re'wiving groove het'neen the,

said tonfiuwreveiving lfroove :md the hote l L toxn of its [doek hul out of contnet with the opposite .sit-le Surfin-e of the other bloeit',

2. ln n wood blot-k floor or the like the combination of'blot'ksv provided with itat vertieni side poi-tions extending `from the edge E.

of one horizontal foce toward the opposite side of the block und adapted to be placed in A Contact with euch other, :i portion of onefof I Suid blocks at the lower edge of said lint!i vertical side surface being undercut und provided with :i horizontal ledge or step :it j the bottoni of .Suid undereut und another: block provided with :i ril or bend projet'tin;rr from the lower edge of its tint vertical side Surface in plane with the undervut portion of the other.' kblock land adapted to enter lthe saine when the two said vertical surfaces arez placed 1n contact, said bend having a horii zontul umlersurfnce adapted. to lit` ou ille `mid horizontal lil-(ige und lut-ving ithl outer surfnet: ont of'eontnet withv the suid linder- 1 eut portion near the said ledge, :t groove exv'tending'- from the ledge to the other hori- Jonx J,o'lrtsnuoueit. y 

